10
h) Keep handles and grasping surfaces dry, clean
and free from oil and grease.
Slippery handles and grasping surfaces do not
allow for safe handling and control of the tool in
unexpected situations.
5) Service
a) Have your power tool serviced by a quali
fi
ed
repair person using only identical replacement
parts.
This will ensure that the safety of the power tool is
maintained.
PRECAUTION
Keep children and in
fi
rm persons away.
When not in use, tools should be stored out of reach of
children and in
fi
rm persons.
ROTARY HAMMER SAFETY
WARNINGS
1) Safety instructions for all operations
a) Wear ear protectors
Exposure to noise can cause hearing loss.
b) Use auxiliary handle(s), if supplied with the tool.
Loss of control can cause personal injury.
c) Hold the power tool by insulated gripping
surfaces, when performing an operation where
the cutting accessory may contact hidden
wiring or its own cord.
Cutting accessory contacting a “live” wire may make
exposed metal parts of the power tool “live” and
could give the operator an electric shock.
2) Safety instructions when using long drill bits with
rotary hammers
a) Always start drilling at low speed and with the
bit tip in contact with the workpiece.
At higher speeds, the bit is likely to bend if allowed
to rotate freely without contacting the workpiece,
resulting in personal injury.
b) Apply pressure only in direct line with the bit
and do not apply excessive pressure.
Bits can bend causing breakage or loss of control,
resulting in personal injury.
ADDITIONAL SAFETY WARNINGS
1. Ensure that the power source to be utilized conforms
to the power requirements speci
fi
ed on the product
nameplate.
2. Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the power
switch is in the ON position, the power tool will start
operating immediately, which could cause a serious
accident.
3. When the work area is removed from the power source,
use an extension cord of su
ffi
cient thickness and rated
capacity. The extension cord should be kept as short as
practicable.
4. Do not touch the bit during or immediately after
operation. The bit becomes very hot during operation
and could cause serious burns.
5. Before starting to break, chip or drill into a wall,
fl
oor or
ceiling, thoroughly con
fi
rm that such items as electric
cables or conduits are not buried inside.
6. Always hold the body handle and side handle of the
power tool
fi
rmly. Otherwise the counterforce produced
may result in inaccurate and even dangerous operation.
7. Wear a dust mask.
Do not inhale the harmful dusts generated in drilling or
chiseling operation. The dust can endanger the health of
yourself and bystanders.
8. Mounting the tool
○
To prevent accidents, make sure to turn the switch o
ff
and disconnect the plug from the receptacle.
○
When using tools such as bull points, drill bits, etc.,
make sure to use the genuine parts designated by our
company.
○
Clean the shank portion of the drill bit. Then smear the
shank portion with the grease or machine oil.
9. The rotation speed cannot be changed by pressing the
rotation speed selector switch while the motor is rotating.
To change speeds, switch o
ff
the tool
fi
rst.
10. RCD
The use of a residual current device with a rated residual
current of 30 mA or less at all times is recommended.
11. Make sure to securely hold the tool as shown in
Fig. 16
during operation.
NAMES OF PARTS (Fig. 1–Fig. 16)
Drill bit
Wing bolt
Stopper
Band
Selector lever
Handle bolt
Switch trigger
Mount
Handle
Band attachment area
Nameplate
Taper shank adapter
Dial
Drill bit (Taper shank)
Brush cap
(Inside the Tail cover)
Cotter
Set screw (Under the
Tail cover)
Core bit shank
Tail cover
Core bit
Housing
Guide plate
Side handle
Center pin
Grip
Core bit tip
Front cap
Carbon brush
Grease
SYMBOLS
WARNING
The following show symbols used for the machine.
Be sure that you understand their meaning before
use.
DH52MA: Rotary Hammer
To reduce the risk of injury, user must read
instruction manual
Only for EU countries
Do not dispose of electric tools together with
household waste material!
In observance of European Directive
2012/19/EU on waste electrical and electronic
equipment and its implementation in
accordance with national law, electric tools
that have reached the end of their life must
be collected separately and returned to an
environmentally compatible recycling facility.
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